//
//  PreferenceBackend.swift
//
//  Copyright 2026 Brendan Szymanski <hello@bscubed.dev>
//
//  This program is free software: you can redistribute it and/or modify
//  it under the terms of the GNU General Public License as published by
//  the Free Software Foundation, either version 3 of the License, or
//  (at your option) any later version.
//
//  This program is distributed in the hope that it will be useful,
//  but WITHOUT ANY WARRANTY; without even the implied warranty of
//  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
//  GNU General Public License for more details.
//
//  You should have received a copy of the GNU General Public License
//  along with this program.  If not, see <https://www.gnu.org/licenses/>.
//
//  SPDX-License-Identifier: GPL-3.0-or-later
//

import Foundation
import Logging
import LuminateCore

private let logger = Logger(label: "\(AppInfo.identifier).store")

/// Opens Luminate's on-disk preference backend, degrading to memory when SQLite is unavailable.
package enum PreferenceBackend {
    /// Opens the SQLite preference store, falling back to an in-memory store on failure.
    ///
    /// - Parameter url: The database file location.
    /// - Returns: A SQLite-backed store, or an `EphemeralPreferenceStore` when opening failed.
    package static func open(url: URL = AppPaths.preferencesDatabaseURL()) -> any PreferenceStoring {
        do {
            return try SQLitePreferenceStore(url: url)
        } catch {
            logger.error("Preferences unavailable, running without persistence", error: error)
            return EphemeralPreferenceStore()
        }
    }
}